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T*E 2 <br /> ANALY1[CAL RESULTS GROUNDWATER <br /> SHELL SERVICE STATION (WIC No 204-7525-0104) <br /> 6131 PACMC AVENUE, STOCKTON, CALIFORNIA - <br /> (parts per million) <br /> Total Aromatic Volatile Organics <br /> Monitoring Date Petroleum Total Total Fecal <br /> Well Collected Hydrocarbons Lead Coliform Collfomi <br /> (MPN/100ml) (MPNl100ml) <br /> Gasoline Benzene Toluene Ethyl- Total <br /> benzene Xylenes <br /> MW-3 07/23/90 630 10 0 190 18 110 540 33 <br /> 10/09/90 690 79 120 12 90 «0 002 >2,400 920 <br /> 01/10/90 630 t 0 0 170 1 2 72 --- 16 Pos <br /> 04/09/91 FLM FLH FLH FLU FLH FLH FLH FLU <br /> 07/17191 FLH FLH FLI1 FLH FLH FLH FLH FLH <br /> 10/08/91 FLH FLH FLH FLH FLH FLIT FLH FLH <br /> 02/26/92 FLH FLH FLH FLH FLH FLH FLU FLH <br /> 05/12/92 FLIT FLH FLH f LH FLH FLH FLH FLH <br /> 07/08/92 FLH FLH FLH FLH FLH FLH FLH FLH <br /> 10/15/92 FLH FLH FLH FLH FLH FLU FLH FLH <br /> 01111!93 FLH FLH FLH FLIT Mi f Ll1 FLH FLH <br /> 04/28/93 FLU FLH FLH FLH FLH FLH FLH FLH <br /> 08126/93 1200 190 220 22 110 --- --- <br /> 11/22/93 1500 19 0 28 0 «0 250 150 --- --- <br /> 02/15/94 1200 220 310 25 140 --- <br /> 05/10/94 150 19 28 25 13 -- --- <br /> 08/16/94 85 I8 28 2 2 13 --- <br /> 11/17/94 120 17 26 2 9 11 --- --- <br /> 02/21/95 110 17 27 21 14 --- --- <br /> 05/16/95 75 14 23 2 2 12 --- --- --- <br /> 10/05/95 110 12 22 21 12 --- --- --- <br /> NOTES = Piot analyzed <br /> < n Less it=Practical Quantitation Repomng Imus stated in the August 10 1990 To Regional Board <br /> Staff Recommendations for Preliminary Evaluation and Investigation of Underground Tank Sites (0 050 ppin for TPH <br /> 0 0005 ppm for BTEX) <br /> MPN1100ml - Most Probable Number(MPN)of bacteria per one hundred milliliters <br /> « Leas than the indicated detection limit <br /> = Greater than or equal to <br /> t Positive response for petroleum hydrocarbons as gasoline is due to the presenee of an unknown hydrocarbon,not gasoline <br /> D = Duplicate sample <br /> Sample eallected prior to July 27 1992 by Aegis Environmental Inc of Roseville,California <br /> Samples collected from July 27 0iraugh October 15 1992 by EMCON Associates of Sacramento Califomta <br /> Samples culleeled after October 15 1992 by Blame Tech Services Ina of San lose California <br /> Fugro <br /> 9347-0020IOctober 1905 <br />